[ Target Science | Lessons and Investigations ]

Water Quality Investigation - Elementary

by Naomi White, Science Teacher, Jefferson High School, LAUSD



[ Student Research Water Quality Data Sheet or Input your data direct into our DataBase ]

Investigation Question:
How does Los Angeles River water compare to tap water and distilled waterin pH, amount of chlorine, copper, iron, and water hardness?

Hypothesis:
Chlorine should be present in tapwater due to its addition during watertreatment. River water should be harder than tapwater and contain morecopper and iron due to water treatment. Distilled water should showlittle/no chlorine, iron, copper, and would be soft.

Experimental Design:

Materials:

Instructions:e-mail data to target@lalc.k12.ca.us

Time of Day:
Location along river:
Where water samples were collected:
Location of tap water:







pHchlorine
ppm
copper
ppm
iron
ppm
water
hardness
ppm
Distilled water




L.A. River water




L.A. tapwater




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